Is this sarcasm? Because my(and everyone I know) experience is absolutely opposite. Salesforce is a shitshow of old pseudo-Java and pseudo-SQL that lack features and proper support. It lock everything behind rate-limits that require you to swipe company credit card to achieve anything. It's slow(both UI and as a development process), hard to work with, INSANELY expensive, most issues are never resolved, or even answered on their official forums.

We didn't go that deep, so the legaxy spaghetti didn't hit us.

The client was filthy rich and needed to transform core business processes.

Time to market on changes we wanted was nearly always "before lunch". And anything custom we were able to do too.